IQOS ILUMA™ is used exclusively with TEREA™ tobacco sticks. Previous IQOS device versions with blade and HEETS are not compatible with IQOS ILUMA™ and TEREA™. Improper use may damage the device. These newly designed sticks are to be used only with IQOS Iluma, which features an auto-start function that detects when the Terea stick is inserted and automatically turns on the device. PACK SIZE: 1 BOX (10 PACKS )